1 外形特征(zheng)
蜜蜂屬(shu)膜(mo)翅目、蜜蜂科。是(shi)一種會飛行的(de)群居昆蟲(chong)(chong),它們被稱為(wei)(wei)資源昆蟲(chong)(chong)。體長8―20毫(hao)米,黃褐色或黑褐色,生有(you)密毛;頭與胸幾乎同(tong)樣寬;腰部(bu)較胸部(bu)、腹部(bu)纖細;觸(chu)角膝狀,復眼(yan)橢(tuo)圓(yuan)形(xing),口器(qi)嚼吸式(shi),后(hou)足(zu)為(wei)(wei)攜粉足(zu);兩對(dui)膜(mo)質翅,前(qian)翅大(da),后(hou)翅小,前(qian)后(hou)翅以翅鉤列連鎖;腹部(bu)近(jin)橢(tuo)圓(yuan)形(xing),體毛較胸部(bu)為(wei)(wei)少,腹末有(you)螫針。蜜蜂是(shi)完全變態昆蟲(chong)(chong),一生要經過卵、幼蟲(chong)(chong)、蛹和(he)成蟲(chong)(chong)四個蟲(chong)(chong)態。
蜜(mi)(mi)蜂是完全(quan)變態發(fa)育(yu)的昆蟲(chong),三型蜂都經(jing)過卵、幼蟲(chong)、蛹(yong)和成(cheng)蟲(chong)(成(cheng)蜂)4個(ge)發(fa)育(yu)階段。蜜(mi)(mi)蜂的4個(ge)階段在形(xing)態上均不相同(tong)。
卵(luan):香蕉形,乳白色(se),卵(luan)膜略(lve)透明,稍(shao)細的(de)(de)一(yi)端(duan)是腹末,稍(shao)粗的(de)(de)一(yi)端(duan)是頭。蜂王產下的(de)(de)卵(luan),稍(shao)細的(de)(de)一(yi)端(duan)是巢房(fang)底部,稍(shao)粗的(de)(de)一(yi)端(duan)朝(chao)向巢房(fang)口。卵(luan)內(nei)的(de)(de)胚胎經過3天(tian)發育(yu)孵化幼蟲。
幼(you)蟲(chong)(chong):白色蠕(ru)蟲(chong)(chong)狀。起(qi)初呈C字形(xing),隨著蟲(chong)(chong)體的(de)長大,蟲(chong)(chong)體伸直,頭朝向巢房。在(zai)(zai)幼(you)蟲(chong)(chong)期由工蜂(feng)(feng)飼(si)喂。受精卵孵化成(cheng)的(de)雌性(xing)幼(you)蟲(chong)(chong),如(ru)(ru)果在(zai)(zai)前3日飼(si)喂在(zai)(zai)蜂(feng)(feng)王漿里加有蜂(feng)(feng)蜜和花粉的(de)幼(you) 蟲(chong)(chong)漿,它們就發育(yu)成(cheng)工蜂(feng)(feng)。同樣的(de)雌性(xing)幼(you)蟲(chong)(chong),如(ru)(ru)果在(zai)(zai)幼(you)蟲(chong)(chong)期被不間斷地飼(si)喂大量的(de)蜂(feng)(feng)王漿,就將發育(yu)成(cheng)蜂(feng)(feng)王。
工(gong)蜂(feng)幼(you)蟲(chong)成長到6日末,由工(gong)蜂(feng)將(jiang)其巢房口(kou)封(feng)(feng)(feng)(feng)上蠟蓋(gai)(gai)。封(feng)(feng)(feng)(feng)蓋(gai)(gai)巢房內的(de)(de)幼(you)蟲(chong)吐絲(si)作繭,然(ran)后化蛹(yong)(yong)。封(feng)(feng)(feng)(feng)蓋(gai)(gai)的(de)(de)幼(you)蟲(chong)和蛹(yong)(yong)統稱為封(feng)(feng)(feng)(feng)蓋(gai)(gai)子(zi),有(you)大(da)部分封(feng)(feng)(feng)(feng)蓋(gai)(gai)子(zi)的(de)(de)巢脾(pi)叫做封(feng)(feng)(feng)(feng)蓋(gai)(gai)子(zi)脾(pi)(蛹(yong)(yong)脾(pi))。工(gong)蜂(feng)蛹(yong)(yong)的(de)(de)封(feng)(feng)(feng)(feng)蓋(gai)(gai)略有(you)突出,整(zheng)個封(feng)(feng)(feng)(feng)蓋(gai)(gai)子(zi)脾(pi)看(kan)起來(lai)比較平整(zheng)。雄蜂(feng)蛹(yong)(yong)的(de)(de)封(feng)(feng)(feng)(feng)蓋(gai)(gai)凸起,而且巢房較大(da),兩者容易區別。工(gong)蜂(feng)幼(you)蟲(chong)在封(feng)(feng)(feng)(feng)蓋(gai)(gai)后的(de)(de) 2日末化蛹(yong)(yong)。
蛹(yong):蛹(yong)期(qi)主(zhu)要是把內(nei)部(bu)器官(guan)(guan)加以改造(zao)和分化,形成(cheng)成(cheng)蜂(feng)(feng)的(de)各種(zhong)器官(guan)(guan)。逐漸呈現出頭(tou)、胸、腹3部(bu)分,附肢也顯露出來,顏(yan)色由乳白色逐步變深。發(fa)育成(cheng)熟(shu)的(de)蛹(yong),脫下蛹(yong)殼,咬破巢房(fang)封(feng)蓋,羽化為成(cheng)蜂(feng)(feng)。
成(cheng)蜂:剛(gang)出房的(de)蜜蜂外骨骼較軟,體表的(de)絨(rong)毛(mao)十分(fen)柔嫩,體色較淺。不久骨骼即硬化,四(si)翅伸直,體內各種器官逐漸(jian)發(fa)育(yu)成(cheng)熟。